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Industrial Hygiene Survey of the Johns-Manville Corporation Fibrous Glass Plant 7, Waterville, Ohio, May 7-10, 1973.

PB81224727

Publication Date	1973
Personal Author	Dement, J.
Page Count	38
Abstract	Worker exposures to small diamter glass fibers were surveyed at Johns-Manville Corporation (SIC-3229) in Waterville, Ohio during May 7 to 10, 1973. About 177 persons were employed at the facility. The corporation retained a general practitioner to perform physical examinations. During the day shift a nurse was on duty. Pre-employment and voluntary periodic physical examinations were given, including chest X-rays and blood tests, but not pulmonary function tests. The factory had industrial hygiene, safety and personal protection programs and a safety committee. Personal and general air samples were collected to determine glass fibers and carbon-monoxide (630080) concentrations, and noise levels were measured. Personal total fiber concentrations ranged from 5.7 to 33.6 fibers per milliliter (Fibers/ml). Personal respirable fiber concentrations ranged from 2.7 to 22.8 fibers/ml in the microfiber and J and J operations. Area samples of total fiber concentrations, ranged from 0.2 to 20.9 fibers/ml. Personal airborne particulate matter samples ranged from 0.24 to 2.04 milligrams per cubic meter (mg/cu m). The highest carbon-monoxide concentration was 13 parts per million. Noise levels ranged from 66 to 115 and 78 to 115 decibels in the A and C weighting networks, respectively. The author concludes that exposures to significant amounts of respirable glass fibers were found in the microfiber, microquartz and J and J operations. He recommends that exposures to respirable glass fibers be kept at an absolute minimum with good work practices and engineering controls. The use of compressed air should be stopped and cleaner vacuum methods should be employed. Medical surveillance of persons working in the microfiber, microquartz and J and J areas is also recommended.
Keywords	Environmental surveys Glass fibers Industrial hygiene Samplyig Contaminants Gases Environments Carbon monoxide Noise(Sound) Concentration(Composition) Air pollution control Occupational safety and health Occupational health services CAS 630-08-0 Particulates
Source Agency	National Institute for Occupational Safety and Health
NTIS Subject Category	57U - Public Health & Industrial Medicine 68G - Environmental Health & Safety 68A - Air Pollution & Control
Corporate Authors	National Inst. for Occupational Safety and Health, Cincinnati, OH. Div. of Field Studies and Clinical Investigations.
Document Type	Technical Report
Title Note	Industrywide study.
NTIS Issue Number	198123

Industrial Hygiene Survey of the Johns-Manville Corporation Fibrous Glass Plant 7, Waterville, Ohio, May 7-10, 1973.

Industrial Hygiene Survey of the Johns-Manville Corporation Fibrous Glass Plant 7, Waterville, Ohio, May 7-10, 1973.
PB81224727

Publication Date	1973
Personal Author	Dement, J.
Page Count	38
Abstract	Worker exposures to small diamter glass fibers were surveyed at Johns-Manville Corporation (SIC-3229) in Waterville, Ohio during May 7 to 10, 1973. About 177 persons were employed at the facility. The corporation retained a general practitioner to perform physical examinations. During the day shift a nurse was on duty. Pre-employment and voluntary periodic physical examinations were given, including chest X-rays and blood tests, but not pulmonary function tests. The factory had industrial hygiene, safety and personal protection programs and a safety committee. Personal and general air samples were collected to determine glass fibers and carbon-monoxide (630080) concentrations, and noise levels were measured. Personal total fiber concentrations ranged from 5.7 to 33.6 fibers per milliliter (Fibers/ml). Personal respirable fiber concentrations ranged from 2.7 to 22.8 fibers/ml in the microfiber and J and J operations. Area samples of total fiber concentrations, ranged from 0.2 to 20.9 fibers/ml. Personal airborne particulate matter samples ranged from 0.24 to 2.04 milligrams per cubic meter (mg/cu m). The highest carbon-monoxide concentration was 13 parts per million. Noise levels ranged from 66 to 115 and 78 to 115 decibels in the A and C weighting networks, respectively. The author concludes that exposures to significant amounts of respirable glass fibers were found in the microfiber, microquartz and J and J operations. He recommends that exposures to respirable glass fibers be kept at an absolute minimum with good work practices and engineering controls. The use of compressed air should be stopped and cleaner vacuum methods should be employed. Medical surveillance of persons working in the microfiber, microquartz and J and J areas is also recommended.
Keywords	Environmental surveys Glass fibers Industrial hygiene Samplyig Contaminants Gases Environments Carbon monoxide Noise(Sound) Concentration(Composition) Air pollution control Occupational safety and health Occupational health services CAS 630-08-0 Particulates
Source Agency	National Institute for Occupational Safety and Health
NTIS Subject Category	57U - Public Health & Industrial Medicine 68G - Environmental Health & Safety 68A - Air Pollution & Control
Corporate Authors	National Inst. for Occupational Safety and Health, Cincinnati, OH. Div. of Field Studies and Clinical Investigations.
Document Type	Technical Report
Title Note	Industrywide study.
NTIS Issue Number	198123